Abstract: Use of composition comprising amlodipine in preparing medicaments for treating a lower urinary tract disorder. The lower urinary tract disorder is selected from the group consisting of benign prostate hyperplasia, lower urinary tract syndrome or overactive bladder, especially the lower urinary tract disorder accompanying with hypertension. Amlodipine is any one selected from the group consisting of amlodipine, amlodipine active metabolite, levoamlodipine, pharmaceutically acceptable precursor of amlodipine, or pharmaceutically acceptable salts of amlodipine, amlodipine active metabolite, levoamlodipine, or pharmaceutically acceptable precursor of amlodipine. The pharmaceutical dose of amlodipine is in the range of 1-10 mg. The invention belongs to the field of pharmacy.